#---------------------------------------------------------------------------------
.SUFFIXES:
#---------------------------------------------------------------------------------
ifeq ($(strip $(DEVKITARM)),)
$(error "Please set DEVKITARM in your environment. export DEVKITARM=<path to>devkitARM)
endif

include $(DEVKITARM)/ds_rules

TOPDIR ?= $(CURDIR)/..

#---------------------------------------------------------------------------------
# BUILD is the directory where object files & intermediate files will be placed
# SOURCES is a list of directories containing source code
# INCLUDES is a list of directories containing extra header files
# DATA is a list of directories containing binary files
# all directories are relative to this makefile
#---------------------------------------------------------------------------------
BUILD		?=	release
SOURCES		:=	src/pj
INCLUDES	:=	include
DATA		:=	data

#---------------------------------------------------------------------------------
# options for code generation
#---------------------------------------------------------------------------------
ARCH	:=	-mthumb -mthumb-interwork

# note: arm9tdmi isn't the correct CPU arch, but anything newer and LD
# *insists* it has a FPU or VFP, and it won't take no for an answer!
CFLAGS	:=	-Wall -O2\
 			-march=armv5te -mtune=arm946e-s \
 			-fomit-frame-pointer\
			-ffast-math \
			$(ARCH)
#-mcpu=arm9tdmi -mtune=arm9tdmi
CFLAGS	+=	$(INCLUDE) -DARM9

CFLAGS	+=	-DPJ_M_ARMV4=1 -DPJ_NDS=1

CXXFLAGS	:=	$(CFLAGS)

#ASFLAGS	:=	-g $(ARCH)
ASFLAGS	:=	$(ARCH) -march=armv5te -mtune=arm946e-s
LDFLAGS	=	-specs=ds_arm9.specs -g $(ARCH) -mno-fpu -Wl,-Map,$(notdir $*.map)

ifneq ($(BUILD),debug)
export ARM9BIN	:=	$(TOPDIR)/lib/libpj-arm-nds.a
else
export ARM9BIN	:=	$(TOPDIR)/lib/libpj-arm-nds-d.a
CFLAGS	+= -g
ASFLAGS += -g
endif

#---------------------------------------------------------------------------------
# any extra libraries we wish to link with the project
#---------------------------------------------------------------------------------
LIBS	:= 
 
#---------------------------------------------------------------------------------
# list of directories containing libraries, this must be the top level containing
# include and lib
#---------------------------------------------------------------------------------
LIBDIRS	:=	$(LIBNDS)
 
#---------------------------------------------------------------------------------
# no real need to edit anything past this point unless you need to add additional
# rules for different file extensions
#---------------------------------------------------------------------------------
ifneq ($(BUILD),$(notdir $(CURDIR)))
#---------------------------------------------------------------------------------


export DEPSDIR := $(CURDIR)/$(BUILD)

export VPATH	:=	$(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
					$(foreach dir,$(DATA),$(CURDIR)/$(dir))
 
export CC		:=	$(PREFIX)gcc
export CXX		:=	$(PREFIX)g++
export AR		:=	$(PREFIX)ar
export OBJCOPY	:=	$(PREFIX)objcopy
 
#CFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
CFILES		:=  addr_resolv_nds.c guid_simple.c \
				log_writer_stdout.c \
				os_timestamp_common.c os_timestamp_nds.c \
				pool_policy_malloc.c sock_select.c \
				ioqueue_select.c \
				file_access_unistd.c file_io_ansi.c \
				os_error_unix.c os_time_nds.c \
				sock_nds.c os_core_nds.c
				
CFILES		+=	array.c config.c ctype.c errno.c except.c fifobuf.c guid.c \
	            hash.c ip_helper_generic.c list.c lock.c log.c os_time_common.c \
	            pool.c pool_buf.c pool_caching.c pool_dbg.c rand.c \
	            rbtree.c sock_common.c string.c timer.c types.c 
#symbols.c

#CPPFILES	:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
SFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
BINFILES	:=	$(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))
 
#---------------------------------------------------------------------------------
# use CXX for linking C++ projects, CC for standard C
#---------------------------------------------------------------------------------
ifeq ($(strip $(CPPFILES)),)
#---------------------------------------------------------------------------------
	export LD	:=	$(CC)
#---------------------------------------------------------------------------------
else
#---------------------------------------------------------------------------------
	export LD	:=	$(CXX)
#---------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------

export OFILES	:=	$(addsuffix .o,$(BINFILES)) \
					$(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)
 
export INCLUDE	:=	$(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
					$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
					$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
					-I$(CURDIR)/$(BUILD)

INCLUDE +=  \
	-I$(THIRD_PARTY_PATH)/pjproject-svn/pjsip-apps/src/samples/nds

export LIBPATHS	:=	$(foreach dir,$(LIBDIRS),-L$(dir)/lib)
 
.PHONY: $(BUILD) clean
 
#---------------------------------------------------------------------------------
$(BUILD):
	@[ -d $@ ] || mkdir -p $@
	@make --no-print-directory -C $(BUILD) -f $(CURDIR)/makefile
 
#---------------------------------------------------------------------------------
clean:
	@echo clean ...
	@rm -fr debug release
	@rm -f $(TOPDIR)/lib/libpj-arm-nds*

all: $(ARM9BIN) 
 
#---------------------------------------------------------------------------------
else
 
DEPENDS	:=	$(OFILES:.o=.d)
 
#---------------------------------------------------------------------------------
# main targets
#---------------------------------------------------------------------------------
$(ARM9BIN)	:	$(OFILES)
	@rm -f "$(ARM9BIN)"
	@$(AR) rcs "$(ARM9BIN)" $(OFILES)
	@echo built ... $(notdir $@)

#---------------------------------------------------------------------------------
# you need a rule like this for each extension you use as binary data 
#---------------------------------------------------------------------------------
%.bin.o	:	%.bin
#---------------------------------------------------------------------------------
	@echo $(notdir $<)
	@$(bin2o)


-include $(DEPENDS)
 
#---------------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------------
